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CCIE Routing and Switching Written Exam v5.1

QUESTION 741

Which two statements about IPv4 and IPv6 networks are true? (Choose two.)

 

A.

In IPv6, hosts perform fragmentation.

B.

IPv6 uses a UDP checksum to verify packet integrity.

C.

In IPv6, routers perform fragmentation.

D.

In IPv4, fragmentation is performed by the source of the packet.

E.

IPv4 uses an optional checksum at the transport layer.

F.

IPv6 uses a required checksum at the network layer.

 

Correct Answer: AB

 

 

QUESTION 742

What are two benefits of NVI? (Choose two.)

 

A.

It provides scalability by maintaining a NAT table on every interface.

B.

It can dynamically create a static route to the NAT pool for translation.

C.

It supports the use of route maps for policy-based NAT.

D.

It supports the use of a single interface fo
r translations.

E.

It injects a route into the existing routing protocol that directs translation to the NAT pool.

 

Correct Answer: AB

 

 

QUESTION 743

Which two BGP attributes are optional, non-transitive attributes? (Choose two.)

 

A.

AS path

B.

local preference

C.

MED

D.

weight

E.

cluster list

 

Correct Answer: CE

 

 

QUESTION 744

DRAG DROP

Drag each spanning-tree feature on the left to the matching statement on the right.

 

clip_image002

 

Correct Answer:

clip_image004

 

 

QUESTION 745

Which three statements about EIGRP wide metrics are true? (Choose three.)

 

A.

The maximum metric is 65536.

B.

The default delay is 1,000,000 picoseconds.

C.

They allow up to 100 hops.

D.

They allow up to 256 hops.

E.

The default delay is 1,000,000 milliseconds.

F.

The maximum metric is 51200.

 

Correct Answer: AB
C

 

 

QUESTION 746

Which component of the BGP ORF can you use to permit and deny routing updates?

 

A.

match

B.

action

C.

AFI

D.

SAFI

E.

ORF type

 

Correct Answer: A

 

 

QUESTION 747

Which two issues is TCP Sequence Number Randomization designed to prevent? (Choose two.)

 

A.

DDOS attacks

B.

OS fingerprinting

C.

man-in-the-middle attacks

D.

ARP poisoning

E.

Smurf attack

 

Correct Answer: BC

 

 

QUESTION 748

Which two OSPF network type require the use of a DR and BDR? (Choose two.)

 

A.

non-broadcast networks

B.

point-to-point networks

C.

point-to-multipoint networks

D.

broadcast networks

E.

point-to-multipoint non-broadcast networks

 

Correct Answer: AD

 

 

QUESTION 749

Which attribute is transported over an MPLS VPN as a BGP extended community?

 

A.

route target

B.

route distinguisher

C.

NLRI

D.

origin

E.

local preference

 

Correct Answer: A

 

 

QUESTION 750

Which two statements about IP SLAs are true? (Choose two.)

 

A.

They are Layer 2 transport independent.

B.

Statistics are collected and stored in the RIB.

C.

Data for the delay performance metric can be collected both one-way and round-trip.

D.

Data can be collected with a physical probe.

E.

They are used primarily in the distribution layer.

 

Correct Answer: AC

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